Electronic Spark Control.. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-02-2004, 02:32 AM   #1
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Default Electronic Spark Control..

My car set an SES Light and it comes up with a Code 43: Electronic Spark Control Circuit. I usually would know where to go from here, but I'm just wondering how to go about fixing it from here on out. When I saw circuit it makes me think that a wire might be loose somewhere or I need to replace a circuit. Is this an actual part that I can just swap out? Thanks.
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Old 03-02-2004, 02:57 AM   #2
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ta, your car is only OBD1, so it can't actually detect a misfire from the coils, plugs, or wires. This usually means that there'* a problem with the crank sensor, cam sensor, or ICM (most likely suspect is the ICM). Do you have any other 3800'* at your disposal to swap out the ICM? Try the ICM and the coils.

It would also help to know if you have the Magnavox ignition (one solid coil) or the Delco (three seperate coils). 92 was a transition year, and you may have either.
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Old 03-02-2004, 10:34 AM   #3
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I have the 3 coil setup on my car, and unfortunately no, I don't have any other 3800 powered cars to swap parts with. I could ohm out the coils, but I'd need to get ahold of an ohmmeter before I could do that. Is the ICM a common thing to go? If so, I can just replace it for the hell of it and it might even fix the problem.
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